假如你是 Bill,你正在和你的父母在中国度假。现在你们正在哈尔滨（Harbin）太阳岛（the Sun Island）游玩，并且玩得很开心。于是你用手机给在美国的朋友Tom发微信，与他分享你的快乐。请你根据下面的写作提纲，以Bill的名义给Tom发微信。词数：80词左右。（开头和结尾已给出，不计入总词数）

写作提纲：

①Where are you taking your vacation?

②What's the weather like?

③What do you think of the park?

④What are people doing in the park?

⑤How are you feeling?

Hi, Tom,

    How is it going? I'm having fun now.